Transmission mechanism.



I. W. MUMY TMMISSIW WCHMMSM.

APPLICATION FILED JAN. 25. I937.

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A TTORNEVS 3. W. MURRY.

TRANSMISSKON MECHANISM. APPucAHbra nun 1M4;

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WITNESSES A TTORFIEVS r l t l reruns-w. MURRY, or MOU'NDSVILLE, wnsr VIRGINIA.

TRANSMISSION MECHANISM.

rename.

Specification of Letters Patent.

Patented Dec. d, i919.

Application filed ianuar 25,1917. Serial no. 144,485. I j

To all whom it may concern:

Be it known that I, JAMES W. MUnRY, a

to provide a frictionally operated transmission, wherein the friction wheels are magnetically controlled.

In the drawings:

Figure 1 isa top plan view with parts in section, of one embodiment of the invention.

Fig. 2 is a section 'on the line 22 of Fig.

1, looking in the direction ofthe arrows ad-' Fig. 9 is a section on the line 9-9 of Fig. V 10, looking in the direction of the arrows jacent to the line.

Fig. 3 is a detail view 0 a modified ar-' 3 rangement of magnet mounting. Fig.4 is a sectional detail view of the differential 'and7. j

V Fig. 5 is a front view of the pinion sup I energized, they will attract the disks"? and 8, pressing them firmly against the peripheries of the disks 9. A series of disks is, mounted on the driven shaft, adjacent to the connection/ used in Figs, 1

porting wheel for the differential.

Fig. 6 is a similar view .of one of the gear wheels of the differential.

Fig. 7 is a top plan view of another embodiment of the invention.

' Fig. 8 is an enlarged sectional detail through one of the cores used in Fig. 7.

ad acent to the line and illustrating another embodiment of the invention.

1 Fig. 10 is a section on the line'10-l0 of Fig. 9, looking in the direction of the arrows adjacent to the line.

. 11 is a detail section of a portion of;

one of the friction disks. y

In the embodiment of the invention shown in Figs. 1 and 2, a supporting frame frames being connected to the bars. .The

. driven shaft 3 is journaled in bearings 4,

and the driving shaft 5 is j ournaled in bearings 6 in alinement with the shaft 3. A disk 7 is journaled loosely on the driven shaft,

anda similar disk 8 is secured to the driving shaft, the said disks being spaced apart and facing eachother, as shown. Other disks 9 are mounted perpendicularly to the disks 7 and 8, between the same, the said disks'9 being four in number, and each disk 9 is secured to a shaft lOwhich is suitably mounted adjacent to the frame. cries of these disks 9 are adaptedto engage the adjacent faces of the disks 7 and 8, to con-- 4 nect the disk 8 with the disk 7 and the driving shaft with the driven shaft. The disks 7, 8 and 9 are of apeculiar construction,

which will be later described in detail, each disk having a facing of metal capable of being acted upon by the electromagnets.- A

hub 12 is secured on each shaft 10 outside of the adjacent disk 9, and each hub carries a pair of electromagnets 13, the said magnets extending in opposite directions from'the hub.

the hub by means of'a rod 14. Each rod .hasits ends oppositely threaded, one end .being' engaged with the magnet and the -I other with a radial lug on the hub, and each rod has a polygonal head'intermediate its ends, by means of which it may turn to move the magnet radially of the hub. It

,will be evident that when these magnets are disk 8, the said disks being, in the present instance, three in number, and forming a differential.

Each magnet is adjustably connected with The periph- The disks comprise a central disk 16, and I lateral disks 17. The central disk 16 is rigid with the shaft, While the disks 17 are journaled loosely thereon, and each of these. disks is provided on its inner face with, an

. annular series of gear teeth 18 concentric with the shaft. These gear teeth are en gaged by pinions 19, which are journaled radially in openings in the central disk. All of these disks 16 and 17 are in contact with the faces of the disks 9, and are turned of the driving disk 8. But in all casesthe .in the same direction,.but at a speed proportionate to the distance fromthecenter speed of the middle disk 16 vwill be equal to; a

the average speed of the disks 17. The disks 9 are drawn toward the peripheries of the disks 16 and 17 by means of electromagnets,

the said'electromagnets being arranged in series, the series at opposite sides of the disk 16'17,' and the disks of each series are arranged in pairs, one pair at each disk 9. Collars 20 are mounted on the shaft 3- in grooved hubs 21, and rods 22 having their ends oppositely threaded are connected with the collars and with U-shaped supports 23 which support the magnets 24. Each rod 22 has threaded engagement at its outer end with the adjacent end of the body of the adjacent U-shaped support, and at its inner end has threaded en agement with the collar, and it will be o vious that by turning the said screws the U-shaped supports carrying the magnets may be adjusted toward and from the disks.

The disks 16 and 17 are mounted on the grooved hub 21, the said hub being keyed to the shaft 3, as shown. The central disk 16 is keyed to the hub, while the disks 17 rotate freely on the hub. The entire hub carrying the magnets and the three disks, is

movable longitudinally with the shaft 3, in order that variable speed may be permitted.

The frame 2 is constrained to move with the shaft 3, by means of collars 4 which encircle the shaft on opposite sides of the end frame 2, and the supporting frame constituted by the bars 1 and the frame 2 is movable in guides 2, the bars 1 being mounted to slide in the guides.

In the embodiment of the invention shown in Figs. 7 and 8, the driven shaft 25 has mounted thereon a disk 25, and the drivin shaft 29 has mounted thereon a disk 28. T ese disks 25 and 28 are parallel, and spaced apart, and other disks 30 are arranged between the said disks 25 and 28.

These disks 30 are secured to shafts 31, journaled at right angles to the shafts 25 and 29, and the disks 30 contact at their peripheries with the disks 25 and 28.

Collars 30 are mounted on the shafts 31,

and these collars have radial arms 15 corresponding to the arms 15 of Fig. 1, said arms carrying magnets 13 corresponding to the magnets 13,. and adjustable by the threaded rods 14 and corresponding to the rods 14'. These magnets draw the disks 25 and 28 into close contact with the peripheries of the disks 30 in the same manner that the magnets 13 act upon thedisks 9.

The driven shaft 25 has mounted thereon a series of disks 26-27, corresponding to the disks 16-17 of Fig. 1, and these disks are arranged 'in precisely the same manner as the disks 1617, and are connected together with the differential connection described for the said disks. j

A pair of magnets 32 is provided in connection with the disks 2627,.the said magnets being arranged on opposite sides of the disk, and the cores of these magnets, to be later described, co'ciperate with the inner faces of the disks 30, to draw the said disks tightly into contact with the peripheries of the disks 2627. Each of these magnets 32 is provided with a particular form of core. A sleeve 33 is mounted on the outer end of the usual soft iron core 34, the sleeve extending beyond the end of the core, and this sleeve is filled with iron filings. The sleeve 33 is of soft metal, and as the contacting surfaces of the disks wear away, the sleeve and the filings wear away also, causing the tproper contact at all times.

Plates 32 are arranged on opposite sides ofthe disks 26-27 and outside of the magnets 32, and these plates are connected to move longitudinally of the shaft and to carry with them the magnets and the disks 26 and 27, the disk 26 being keyed to the shaft. In this way variable speed connection is obtained between the driving and driven shafts.

In the embodiment of the invention shown in Figs. 9 and 10, mechanism is provided for varying the relative speed of the driving and driven shafts. The driving shaft 35 and the driven shaft 36 are arranged in alinement, each. having mounted thereon a disk 37 and 38, respectively. The counter-shaft 39 is arranged between the disks, and upon thiscounter-shaft is mounted a pair ofifriction disks 40 and 41. contact with the peripheries of the disks 37 and 38, and the disks 37 and 38 are adapted to be connected by a friction disk 42 also mounted onthe shaft 39, and contacting with adjacent faces of the disks 37 and 38. This disk 42 is movable longitudinally of the shaft 39, being arranged between a pair of plates 43 which are connected together in any suitable .or desired manner, and are mounted to move on fixed guides 44 arranged 100 above and below the shaft 39. A air of f magnets 45 is connected to each p ate 43,

the said magnets being at opposite sides of the disk 42 and at opposite sides of the shaft.

39. These magnets act upon the disks 37 106 36 between the disks 37 and 38, "and fixed 110 collars 47 upon the said shafts. The disks 37 and 38 are movable longitudinally of the shafts, but are constrained to turn therewith in any suitable or desired manner.

In Fig. 11 is shown a preferred tion of friction disk for cooperating with the electromagnet. In this instance the said disk consists of the support 48 of circular formation, which is connected with the shaft 49, and upon the face of the support 48 re- 120 mote from the shaft is arranged a facing of metal, the said facing 50 being in the form of a soft metal strip which is coiled spirally on the face of the support, from the center to the periphery thereof, thd coils of the 125 strip being in contact.

It will be understood that while the shafts 5, 25 and 35 are described as driving shafts,

and the shafts 3, 29 and 36 as driven shafts,

the shafts 3, 29 and 36 might be driving 130 The disks 40 and 41 construc- 11 5 A first-named shafts, and the shafts 5, 25 and driven shafts. In each construction the magnets act to draw the disks 9, 30, or 37-38 into close firm contact with the periphery of the central disk, in order to insure a good driving connection. g

In the embodiment of the invention shown in Figs. 1 to 3, inclusive, the magnets 13 are supplied with current by a circuit 51 having interposed therein asource 52 of electrical energy, and a cut out switch 53. The electro: magnets 23 are supplied with current by a circuit 54, having interposed therein a source 55 of electrical energy, and a cut out switch 56. The electromagnets 13* in F ig. 7 and the electromagnets in Figs, 9 and 10 are supplied with current by similar circuits.

I claim:

1. A transmission mechanism comprisin in combination with the driving'shaft an the driven shaft and the friction disks thereon, and spaced apart and parallel with each other, connecting disks between the first-named disks at the periphery thereof,

oppositely arranged electromagnets at the outer faces of the said last-named disks, and cooperating with the adjacent faces of the first-named disks to hold the said firstnamed disks in firm contact with the lastnamed disks, central and lateral disks arranged betweenthe connecting disks and centre disk and being loose on the driven,

' posite sides ofthesaid'disks and coiiperat connecting the saiddisks adjacent to the (lriVing disk, the central disk being secured to' the driven shaft and the lateral disks havin a differential connection-with the shaft, and seriesjof electromagnets at oping with the adjacent faces of the connect-' ing disks for the purpose specified, all of said magnets being adjustable toward and from the disks with which they cooperate,

said cooperating disks having metallic inner faces, said series of disks and the electroin combination with the. driving shaft and the driven shaft and the friction disks there-' magnets adjacent thereto being movable longitudinally of the shafts.

2. A transmission mechanism comprising on, and spaced apart and parallel. with each other, connecting disks between the firstnamed disks at the eriphery' thereof, op-

,positely arranged e ectromagnets at the outerface's of the said last-named disks, and cooperatin with the adjacent faces of the disks to hold the said firstnamed disks in firm contact with the lastnamed disks, central and lateral disks arranged between the connectingdisks and connecting the said disks adjacent to the driving disk, the central disk being secured to the driven shaft and the lateral disks having a differential connection with the central disk and being loose on the driven Shaft, and a series of electromagnets at opeach other, connectin posite sides of the said disks and cooperating with the adjacent faces of the connecting disks for the purpose specified, all of said magnets being adjustable toward and from the disks with which they cooperate, said series of disks and the electromagnets adjacent thereto being movable longitudi nally of the shafts.

3. A transmission mechanism comprisiiw in combination with the drivin shaft and the driven shaft and the friction disks thereon, and spaced apart and parallel with disks between the firstenamed disks at t e periphery thereof,

oppositely arranged electromagnets at the outer faces of the said last-named disks, and coiiperating with the adjacent faces of the first-named disks to hold the said firstnamed disks in firm contact with the last named disks, central andlateral disks arranged between the connecting disks and connecting the said disks adjacent to the driving disk, the central disk being secured to the driven shaft and the lateral disks havin a differential connection with the centra disk and being loose on the driven shaft, and series of electromagnets at opposite sides of the said disks and coiiperat-- mg with the adjacent faces of the connecting disks for the purpose specified, said se ries of disks and theelectroma ets adj acent thereto being movable longitudinally of theshafts.

' 4.. A transmission mechanism comprising in combination with the driving shaft and the driven shaft and the friction disks thereon, and spaced apart-and parallel with eachother, connecting disks between the first named disks at the eriphery thereof, oppositel arranged "e ectromagnets at the outer f 2ices of the said last-named disks, and coiiperatin with'the adjacent faces of the first-name ldisks to hold the said firstnamed disks in firm contact with the lastnamed disks, a friction disk. between the connecting disks and movable longitudinally of the shafts, gand electromagnets adjacent to the said disk, for thepurpose specified. 5. A transmission mechanism comprising iii.-

in combination with the driving and driven shafts'and the friction disks thereon and in combination With the driving and driven shafts and the friction disks thereon and mounted to rotate therewith, said disks being parallel and spaced apart, a countershaft journaled between the disks and having connecting disks mounted loosely thereon and engaging the peripheries of the firstnamed disks, a connecting friction wheel engaging the adjacent faces of the first-named disks and mounted to move longitudinally of the counter-shaft, means for moving the said disks, and electromagnets moving therewith and cooperating with the first-named disks.

7. A transmission mechanism comprising in combination With the driving shaft and the driven shaft, a disk secured to one. of the said shafts, a series of disks mounted on the other of said shafts, a air of connecting disks arranged in paral e1 spaced relation and engaging with their adjacent-faces the peripheries of the series of disks, and with their peripheries the face of the other disk,

said series of disks being connected to the a shaft with a dilferential connection, electromagnets mounted on opposite sides of the series of d sks and cooperating with the connecting disks, each of the said magnets havmg mounted on the core thereof a sleeve of soft metal, and a filling of iron filings in the sleeve, the outer end of the sleeve and the filings engaging the disks.

8. A transmission mechanism comprising in combination with the driving shaft and the driven shaft, a disk secured to one of the said shafts, a series of disks mounted on the other of said shafts, a pair of connecting disks arranged in parallel spaced relation and engaging with their adjacent faces the peripheries of said series of disks, and with their peripheries the face of the other disk, said series of disks being connected to the shaft With a differential connection, and electromagnets mounted. on opposite sides of the series of disks and 00- operating with the connecting disks, the series of disks and the electromagnets adjacent thereto being mounted to move longitudinally of the shafts.

- JAMES W. MURRY.

Witnesses: 1 i

JosEPH H. MoGoRMAcK, JAMES F. SHIPMAN. 

